Toyota UR (V8)

Toyota's V8 family in 4.6, 5.0 and 5.7 litre forms — the 3UR-FE in the Tundra, Sequoia and Land Cruiser, the 1UR in the Lexus LS and GX, and the 2UR-GSE in the Lexus F cars.

They have a strong durability record and no systemic failure of the kind that defines most engines in this catalogue. The single item worth knowing is the secondary air injection system on the 2007–2013 Tundra and Sequoia, whose pump and valves fail and set a distinctive set of codes — a known, recalled pattern that presents as an emissions fault on cold start and is expensive because of what has to come off to reach it.

Beyond that, the recurring findings are the water pump, the cam-tower and timing-cover sealant weeping at high mileage, and — in the Land Cruiser's case — the consequences of very hard duty in hot climates. As with the 2GR, rear-bank access on the transverse Lexus installations makes routine work a much larger job than it appears.